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Discussion Starter · #1 ·
Swinging a second hand motor into my 93 W-9. DDEC 2 out DDEC 2 in.

Noticed the "new" motor has a DDEC 3 ECM. Was explained to me that the DDEC 2 ECM was superseded to the 3 when Detroit stopped making 2's. I was planning on using the original ECM anyway, but have started wondering about reluctor wheels. The crank wheel on the 2 series motors was a six vane. On the 3 series it is a 12 vane. Guess i'll remove the sensor and count.

Anybody else have anything to add?
 
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